Re: Net::SSH::Perl ConnectTimeout (ssh -o option)

Looking at the source code, the ToDo file, reveals that this is not yet finished:

$Id: ToDo,v 1.22 2003/12/03 15:35:21 autarch Exp $

Add more tests to the test suite; add SSH2 tests.

Fixes to SSH2 implementation:
    * get rid of dummy shell channel (if possible)
    * more documentation
    * anything currently marked XXX in the code

Compatibility with NetScreen?

Switch over to using Crypt::RSA for SSH1 RSA implementation?
SSH2 RSA keys now use Crypt::RSA; at this point it might just
be too much extra baggage to try to force people to use
Crypt::RSA, because it has so many prereqs.

Switch completely to Math::Pari? Worthwhile? Again, don't
want existing SSH1 users to have to switch.

Use non-blocking connect, like IO::Socket, to implement a
connect Timeout.

A proper scp client.

Port forwarding.
[download]

Neil Watson
watson-wilson.ca

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Re^2: Net::SSH::Perl ConnectTimeout (ssh -o option) by codejerk (Initiate) on Aug 10, 2006 at 14:26 UTC
very true. Because this module is unfinished, has anyone managed to use a workaround or modification to (at least temporarily... I'm sure btrott will get back to this module soon) implement a connect timeout? to summarize: Net::SSH::Perl is unfinished. Net::SSH::Perl does not yet have an implementation of the SSH ConnectTimeout option. I am searching for a quick, temporary solution to this "feature hole" If anyone can assist, I will greatly appreciate the input :)	[reply]
Re^3: Net::SSH::Perl ConnectTimeout (ssh -o option) by Anonymous Monk on Sep 21, 2007 at 18:49 UTC
This is a very late reply, but this has still not been implemented. I added the following to Perl.pm, right after the socket creation to give me a send/receive timeout of 10 seconds: setsockopt($sock, SOL_SOCKET, SO_SNDTIMEO, pack('LL', 10, 0) ) or die $!; setsockopt($sock, SOL_SOCKET, SO_RCVTIMEO, pack('LL', 10, 0) ) or die $!; Hope that helps. --mf	[reply]
Re^4: Net::SSH::Perl ConnectTimeout (ssh -o option) by Anonymous Monk on Apr 08, 2009 at 18:19 UTC
This work-around almost solved my problem -- but my time_t was a 64-bit integer. I believe that pack("L!L!",...) is more portable in this case.	[reply]
Re^4: Net::SSH::Perl ConnectTimeout (ssh -o option) by cmv (Chaplain) on Aug 12, 2014 at 13:42 UTC
There is also a select call in the client loop that can be another cause delay. Select has the option of providing a timeout value, but the SSH2.pm code doesn't utilize it. The solution is discussed here: Re^4: Net::SSH::Perl hangs(during cmd), but only in Mason environment	[reply]
Re^4: Net::SSH::Perl ConnectTimeout (ssh -o option) by Anonymous Monk on Mar 04, 2011 at 01:08 UTC
Well this workaround is for timeout while creating SSH object or the timeout is applicable while executing a SSH command using that object. Will it die if there is no response from the command. Thanks	[reply]
Re^3: Net::SSH::Perl ConnectTimeout (ssh -o option) by Anonymous Monk on Jan 21, 2015 at 00:57 UTC
Hi folks, I would like to know if there is a way to get time taken for each step in debug mode to be displayed to find out which step is taking the longer time. Net::SSH::Perl Version 1.35, protocol version 2.0, running in debug mode I have the following timeout issue at times and would like to get UNIX time displayed besides the sourceserver like following for each debug line. Thanks. sourceserver unixtime: Reading configuration data /usr/local/apps/.ssh +/config sourceserver unixtime: Reading configuration data /etc/ssh_config sourceserver unixtime: Connecting to targetserver, port 22. sourceserver etc: Remote protocol version 2.0, remote software version + OpenSSH_4.3 sourceserver: Net::SSH::Perl Version 1.35, protocol version 2.0. sourceserver: No compat match: OpenSSH_4.3. sourceserver: Connection established. sourceserver: Sent key-exchange init (KEXINIT), wait response. sourceserver: Algorithms, c->s: 3des-cbc hmac-sha1 none sourceserver: Algorithms, s->c: 3des-cbc hmac-sha1 none sourceserver: Entering Diffie-Hellman Group 1 key exchange. sourceserver: Sent DH public key, waiting for reply. sourceserver: Received host key, type 'ssh-dss'. sourceserver: Host 'targetserver' is known and matches the host key. sourceserver: Computing shared secret key. sourceserver: Verifying server signature. sourceserver: Waiting for NEWKEYS message. sourceserver: Send NEWKEYS. sourceserver: Enabling encryption/MAC/compression. sourceserver: Sending request for user-authentication service. sourceserver: Service accepted: ssh-userauth. sourceserver: Trying empty user-authentication request. sourceserver: Authentication methods that can continue: publickey,gssa +pi-w ith-mic,password,keyboard-interactive. sourceserver: Next method to try is publickey. sourceserver: Next method to try is password. sourceserver: Trying password authentication. Taking too long to complete. Timed out after 60 seconds. [download]	[reply] [d/l]
Re^4: Net::SSH::Perl ConnectTimeout (ssh -o option) by salva (Canon) on Jan 21, 2015 at 08:16 UTC
The easiest solution would probably be to just patch or to redefine the module `debug` function. Another, less intrusive, option is to tie STDERR to an object that prepends the current time to every printed line.	[reply] [d/l]
Re^5: Net::SSH::Perl ConnectTimeout (ssh -o option) by Anonymous Monk on Jan 22, 2015 at 19:40 UTC
Re^6: Net::SSH::Perl ConnectTimeout (ssh -o option) by salva (Canon) on Jan 22, 2015 at 21:03 UTC